Mersen Surge Trap STXR Series
September 2, 2026
The most popular range in Mersen’s STX series offering, the Surge-Trap® Type 1 STXR meets requirements for UL1449 4th Edition and is ideal for the replacement of obsolete surge arrestors. The STXR Series SPDs feature TPMOV® technology inside, making them the safest product available. With a small, compact design and line or load installation flexibility, the STXR series is the perfect fit for branch panel and/or individual equipment protection.
FEATURES AND BENEFITS:
- Designed with the industry leading Mersen TPMOV® Technology
- LED status indicator (ON = Good, OFF = Replace)
- NEMA 4X enclosure for outdoor or indoor use
- Fits 3/4″ knockouts with 3′ leads for easy installation
- Optional mounting bracket for surface mount applications
- Optional audible alarm and remote dry contacts
- For use in ANSI/UL Type 1 or 2 SPD installations
- Up to 10 modes of Protection (L-N, L-L, L-G optional, N-G optional)
- 5-year warranty
APPROVALS:
- ANSI/UL 1449 4th Edition, Type 1 SPD, File E210793
- CSA C22 .2, Type 1 SPD
- ANSI/IEEE C62 .41 .1, C62 .41 .2, C62 .45
- UL96A Lightning Protection
- RoHS Compliant
RATINGS:
- Volts (Un): 120-600VAC
- Nominal Discharge Current Rating (In): 10-20kA
- Surge Capacity (per phase and per mode): 50kA
- Short-Circuit Current Rating (SCCR): 200kA
